14684028221 has 2 divisors, whose sum is σ = 14684028222. Its totient is φ = 14684028220.

The previous prime is 14684028187. The next prime is 14684028283. The reversal of 14684028221 is 12282048641.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14341260025 + 342768196 = 119755^2 + 18514^2 .

It is an emirp because it is prime and its reverse (12282048641) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14684028221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (14684027221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7342014110 + 7342014111.

It is an arithmetic number, because the mean of its divisors is an integer number (7342014111).

Almost surely, 2^14684028221 is an apocalyptic number.

It is an amenable number.

14684028221 is a deficient number, since it is larger than the sum of its proper divisors (1).

14684028221 is an equidigital number, since it uses as much as digits as its factorization.

14684028221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 49152, while the sum is 38.

The spelling of 14684028221 in words is "fourteen billion, six hundred eighty-four million, twenty-eight thousand, two hundred twenty-one".